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H8SX1663 数据表(PDF) 325 Page - Renesas Technology Corp |
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H8SX1663 数据表(HTML) 325 Page - Renesas Technology Corp |
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325 / 1158 page ![]() Section 6 Bus Controller (BSC) Rev.1.00 Jun. 07, 2006 Page 273 of 1102 REJ09B0294-0100 T p T r T c1 T cl T c2 T c1 T cl T c2 T 1 T 2 PALL ACTV READ READ NOP NOP Address bus Row address Row address Column address 1 Column address 2 SDRAM space read External space read SDRAM space read External address External address SD φ CS Precharge-sel RAS CAS WE CKE DQMLU DQMLL D7 to D0 BS RD/ WR D15 to D8 High Figure 6.74 Timing Example of RAS Down Mode (BE = 1, RCDM = 1, CAS Latency = 2) |
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